Chain-holding-hook structure



March 24,1925. 1,530,472

. A. F.. ANDERSON CHAIN HOLDING HOOK STRUCTURE Filed Novv 26, 1923 taining the parts in y from the right of Figure 4.

Patented Mar. 24, 1 925 v e v UNITED STATES T N-T cnarn-norinino-nooxs'rnuc'runn.

Application filed November 26, 1923. 7 Serial N0. 6Z7,005.

To all whom it may] concern Be it known that I, ANDREW F. ANDnRsoN,

a citizen of the United States. residingat Spokane, in the county of Spokane and State of Washington, have invented new and useful Improvements in Chainllolding Hook Structures, of which the following is a specification. I

-This invention relates to improvements in chain holding hook structuresof the releasable type. I

The device of my invention is primarily designed, for use in holding binder chains about a'carloa-d of logs and one of the features consists in a. device of this character which is not in any way attachedo-r connected with the car structure.

e A further feature resides in means wherev by the device can be tripped to release, the

chain by an operator located at one end of the car so that such. operator is free from danger of the falling logs.

- My invention resides in. struction which will be more fully described in connection with the accompanying draw ing and which will be more particularly pointed out in and'by the appended claims. Inthe drawing V Fig. 1, is a view in side elevation of a car loaded with logs and showing the device of my invention applied to the binding chain,

the means for holding the logs on the car not being shown.

2, is an enlarged view of the hook structure showing the same in a chain holding position. e

Fig. 3, is a similar view showing'the structure in a chain releasing position. g j

Fig. 4, is a fragmentary View partlyin section showing the internal means for re- Figure 2.

Fig.5, is a view similar toFigure'4, showing how the parts appear when fina released position. I

Fig. 6, is a fragmentary iew looking I designate similar parts throughout the different fig ures of the drawing. f i

I have shown the logs 1, mounted on Like characters of reference bolsters 2, of a logging car generally indi-v cated at 3.

V The car may or may not be equippe'dwith bunk pins or any means for preventing the, logs from sliding on the bolsters 2, all of which is immaterial to.

features of conthe position shown in I my invention. VVhat is generally known as the binding chain is designatedat 4, and the hook structure of my invention is shown at [A trip cord 6, may extend from the 1,530,472 FFI-(IE.

. ANDREW r1 imnnnsomor sioxnnn, was :moron.v

hook structure 5, to a point adjacent the end'of the car so that an operator may stand in a place of safety when hetripsthe device and. releases the chain 4, to let'the logs fall.

Itwill "thus be seen that 'my' invention is self containedand is not connected withthe 1 car or in any way dependent thereon. I

I will next describe the specific construction of my improved hook structure.

I The device, of my invention comprises pivotally connected members one being a shankimember indicated at 7, and theother the bill member which is indicated at 8.

One end 9, of the shank member is apertured at 10, for-attachment thereto of one. end 11,

of the chain to be held. .One end of the hill 8, is reduced at12, and apertured to receive a pivot 13, which extends throu h the forked end 14, of the shank 7, The'blll 8, is. curved as shown at 15, theconstruction being such that when the structure is in a .chain holding position, it will be disposed at an angle to the ohain line or line of stress on the chain 4, as clearly, shown in Fig. 2. The bill 8, is forked at 16, to permita link 17, of the chain to be inserted flat-wise into .the forked portion,the next link 18 being disposed transversely of the plane of space of the fork and holding the chain in the fork. Now it will be noted that my improved bill 8, is at all times openand never closes against the shank' 7. What I will term the chain side of the hook is designated at A, the rear *sidebeing indicated In' this recess is journalled a releasing cam 21 having a periphery which is partly cy lindrical as at 22, and a portion which is flat, indicated at '23. Theends 24, of said cam 21, extend laterally, inthe same cross section. A trip arm 25, has a forked end 26 which nest; about the reduced portion 1 2, as shown, and has openings shaped vit to fit the ends 24', so that the cam 21 will be non-rotatively connected with trip arm 25. It will also be clear that trip arm 25 is pivotally connected wit-hbill member 8. A trip cord 6 is secured to the aperture 27,

in arm 25.

My improved keeper is shown in the form of a lever arm 28v having ears 29 which fork a lug 30, formed on shank T. A pivot pin 31, pivotally unites the keeper 28 with shank 7, and the latter is only slightly recessed to receive the ears 29, thereby permitting the keeper 28 only a very slight movement. The remainii'ig end of the keeper is adapted for engagement with shoulder 19 and for coact ion with cam 21. It will be seen that the end 32, of keeper 28, engages shoulder 19 and thereby prevents the hill 8 from swinging from the retainihg pos'itio n shown in Fig. 2, to the releasing position shown in Fig. New on the left hand face of this end of the keeper 28, is a projection having a slanting face 33 which terminates at 3d, and then curves into the keeper 28 as indicated at 35; This projection is provided so that as the edge 36 of the cam advances in a clockwise direction it will have a contacting engagement with keeper 28 sufficiently to move the latter clear from engagement with shoulder 19. After the keeperhas been disengaged from shoulder 19,- the pull of the chain will move the bill 8 to the extreme position shown in Fig. 8. s s

It will be seen that the forked portion of trip arm 25, will always house the free end of keeper 28, so that when the structure is in a releasing position, the keeper cannot swing downwardly completely outof range of reengagement with cam 21, but is held in fairly close, proximity thereto.

It will also be noted that by reason of the fact that trip arm 25, is non-rotatively connected with cam 21, the arm will always, of necessity, be in the correct position shown in Fig. 2, when the hookstructure is in a chain retaining position, and will be so held by the keeper 28, This isalso due to the fact that the keeper cannot be adjusted into a retaining position until the cam 21 and the arm 2? arei'n the position shown in Fig. 2.

It is believed that my invention will be fully understood from the foregoing description, and while I have herein shown and described one specific form of my invention, I do not wish to be limited thereto except for such limitations as the claims may import.

I claim v 1. A chain holder comprising a shank connected with one end of the chain, a bill pivoted to said shank and adapted for re; leasable' connection with the remaining end of said" chain, a keeper pivoted to said shank and" ei'igagi'ng said bill .to retain the latter in a chain engaging position, and a trip arm pivoted to said bill for dis-engaging said keeper from said hill.

2. A chain holder comprising a shank having one end thereof connected to one end of the chain to be held, a. bill having a fork on one end and the remaining end o-f' said bill being pivoted to the remaining end of said shank, a strut keeper pivoted to said s rank and engaging said bill to retain the latter in a chain holding position, and a trip arm pivoted to said bill for dis-engaging said keeper from said hill.

3'. In a chain holding hook structure, the combination with pivo-tally connected bill and shank members shaped to be disposed at an angle to the chain line when in a chain holding position, and keeper and trip mechanism on that side of the hook structi'ire opposite the chain side for holding said bill in and releasing said bill from a chain holding position. i

4.. In a chain holding hook structure, the combination with pivotally connected shank and bill members, said bi'll member having a keeper engaging shoulder, a keeper on said shank member for engagement with said shoulder, a keeper releasing cam rotatable in said bill member for dis-engaging said keeper from said shoulder to release said bill member, and a trip arm carried by said cam for actuating the latter.

5. In a chainholding hook structure, the combination with pivo'tally connected shank andv bill members, a keeper carried by said shank member for holding said 'bil'l' memher in a chain holding position, and a cam trip means on said bill member for releasing said keeper from said bill member."

6. In a; chain holding hook structure, the

combination with pivotally connected shank and bill members, a keeper carried said shankmember for retaining said bill memher in a chain; holding position, and cam meansfor'releasing said bill member.

7. in a chain holding hook structure, the combination with pivotally connectedshank and bill members, akeeper'for heldin'g said bill member in a chain holding position, a cam for releasing said keeper from saidbill member, and atrip arm fixedly secured to said cam thereby insuring a correct position of said trip arm when said structure is adjusted into a chain holding position.

In testimony that I claim the foregoing as my own, I hereby affix my signature.

ANDREW F. ANDERSON. 

